Claude Opus 5.3
Claude Opus 5.3 is Anthropic's language model. An Opus-tier Claude LLM in the Claude 5.x series, built for advanced reasoning, vision, and tool-use tasks requiring high capability.
Capabilities
Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Claude Opus 5.3 | — | — | — | — | Current |
| Claude Opus 5 | 1.0M | $5.00 | $25.00 | Available | |
| Claude Opus 5 Fast | 1.0M | $10.00 | $50.00 | Available | |
| Claude Opus 5 Claude Opus 4.8 | — | — | — | $50.00 | Available |
| Claude Opus 4.8 | 1.0M | $5.00 | $25.00 | Available | |
| Claude Opus 4.8 Fast | 1.0M | $10.00 | $50.00 | Available | |
| Claude Opus 4.7 Fast | 1.0M | $30.00 | $150.00 | Available | |
| Claude Opus 4.7 | 1.0M | $5.00 | $25.00 | Available | |
| Claude Opus 4.6 | 1.0M | $5.00 | $25.00 | Deprecated | |
| Claude Opus 4.5 | 410K | $5.00 | $25.00 | Available | |
| Claude Opus 4.1 | 200K | $15.00 | $75.00 | Deprecated |
Other Models
| Model | Tier | Released | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|---|
| Claude Sonnet 5.3 | Sonnet | — | — | — | — |
| Claude Sonnet 5 | Sonnet | 1.0M | $2.00 | $10.00 | |
| Claude Fable 5 | Fable | 1.0M | $10.00 | $50.00 | |
| Claude Fable 5.3 | Fable | — | — | — | — |
| Claude Mythos 5 | Mythos | — | 1.0M | $10.00 | $50.00 |
| Claude Sonnet 4.6 | Sonnet | 1.0M | $3.00 | $15.00 | |
| Claude Haiku 4.5 | Haiku | 200K | $1.00 | $5.00 | |
| Claude Sonnet 4.5 | Sonnet | 1.0M | $3.00 | $15.00 | |
| Claude Sonnet 4 | Sonnet | 1.0M | $3.00 | $15.00 | |
| Claude Sonnet 4.6 Adaptive | Sonnet | — | — | — | — |